Hello @Ines-And-Mark0,
Congratulations on your first booking, exciting times. 🙂
If you have received a booking confirmation from Airbnb, then your guest has paid already through the Airbnb system. Just to really stress, for safety reasons you should never give out your bank account details to any guests when they are trying to book.
As you are a new host, you might also find it useful to take a look at the Community Help Guides that have been created by two hosts here in the CC and the Airbnb Help Center also has lots of good information.
I hope this is helpful. 🙂
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Thank you for the last 7 years, find out more in my Personal Update.
Looking to contact our Support Team, for details...take a look at the Community Help Guides.